2015
DOI: 10.1016/j.ijhydene.2015.05.071
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Potential applications of the hydrogen and the high energy biofuel blend produced by ethanol dehydrogenation on a Cu/ZrO2 catalyst

Abstract: Available online xxxKeywords: Ethanol dehydrogenation Fuel blend Hydrogen PEMFC Catalysis a b s t r a c t This study aims at analyzing the potential application of the liquid effluent coming from a catalytic ethanol dehydrogenation reactor as a fuel blend or additive for internal combustion engines, and also of the hydrogen produced, as fuel for a polymer electrolyte fuel cell (PEMFC). The liquid effluent is obtained by the catalytic reaction of ethanol over Cu/ ZrO 2 at different contact times of the reactant… Show more

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Cited by 15 publications
(14 citation statements)
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“…Additionally, ethyl acetate has been evaluated as a potential oxygenated biofuel since can be readily produced from renewable feedstocks by several processes such as the direct esterification of ethanol with acetic acid [20], through dehydrogenative dimerization of bioethanol with liberation of molecular hydrogen [21], or by a biochemical process that includes acidogenic fermentation of agricultural wastes materials [22]. EA is an environmentally friendly compound that exhibit very low kinematic viscosity, high miscibility with VOs and fossil diesel, high oxygen content, high auto-ignition temperature which makes fuel safer for handling and transportation, and good cold flow properties (very low PP and CP values) to improve winter engine performance.…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, ethyl acetate has been evaluated as a potential oxygenated biofuel since can be readily produced from renewable feedstocks by several processes such as the direct esterification of ethanol with acetic acid [20], through dehydrogenative dimerization of bioethanol with liberation of molecular hydrogen [21], or by a biochemical process that includes acidogenic fermentation of agricultural wastes materials [22]. EA is an environmentally friendly compound that exhibit very low kinematic viscosity, high miscibility with VOs and fossil diesel, high oxygen content, high auto-ignition temperature which makes fuel safer for handling and transportation, and good cold flow properties (very low PP and CP values) to improve winter engine performance.…”
Section: Introductionmentioning
confidence: 99%
“…The production of fuels from renewable resources has become a major focus of researchers and industry, due to the increasing demand for energy and the need for environmental preservation. [1][2][3][4][5] Renewable gaseous fuels, such as hydrogen, are among the most promising options for diversification of global energy sources. 1,[4][5][6][7] According to the International Energy Agency, 8 hydrogen is forecast to account for about 18% of total global energy supply by 2050, as one of the pillars responsible for an energy transition and reduction of emission of almost 6 gigatons of carbon dioxide into the atmosphere.…”
Section: Introductionmentioning
confidence: 99%
“…Já na parte B, objetivou-se obter melhores performances em PEMFCs alimentadas por este tipo de hidrogênio, além de procurar entender o processo de contaminação que ocorre neste sistema 34,35 .…”
Section: Parte B -Células a Combustível De Membrana Trocadora De Prótunclassified
“…De fato, levar o teor de CO a este nível é ainda um importante e custoso desafio tecnológico que tem envolvido a reação de deslocamento gás-água28 , oxidação parcial do CO 29 , etc.Em um outro enfoque, inúmeros catalisadores têm sido investigados para promover maior tolerância do ânodo da célula a este contaminador, que são, por exemplo, os casos do materiais bimetálicos nanoparticulados, conforme será discutido mais adiante. Dificuldades associadas com o fato de que a tolerância se estende razoavelmente somente até 100 ppm de CO e que os materiais produzidos não26 Introdução ___________________________________________________________________ apresentam a estabilidade requerida, indicam que este problema ainda não está resolvido30,31,32 .Outra forma de se produzir hidrogênio através do etanol é pela desidrogenação catalítica deste álcool e que foi recentemente proposta33,34,35 como uma alternativa que leva à produção de hidrogênio livre de CO e contendo apenas traços de CO2, , se necessário, este pode ser facilmente eliminado por um condensador contendo Ca(OH)236 . A Figura 2, extraída da referência 34, mostra um desenho esquemático de como esse sistema funcionaria em um veículo automotivo.…”
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